Active sort of Green with rising name (9)
I believe the answer is:
energetic
'active' is the definition.
('energetic' can be similar in meaning to 'active')
'sort of green with rising name' is the wordplay.
'sort of' is an anagram indicator.
'with' means one lot of letters go next to another.
'rising' says the letters should be written backwards (going up in a down clue).
'name' becomes 'cite' (I've seen this in other clues**).
'cite' reversed gives 'etic'.
'green' is an anagram of 'energ'.
'energ'+'etic'='ENERGETIC'
(Other definitions for energetic that I've seen before include "Vigorous and dynamic" , "Forceful and with great vitality" , "Showing great activity" , "Involving great activity" , "Full of beans" .)